271 research outputs found
Compte rendu de Jean-Louis Basdevant : « 15 leçons de mécanique quantique »
No full textBasdevant (Jean-Louis), 15 leçons de mécanique quantique. – Louvain-la-Neuve : De Boeck Supérieur, 2019. – x, 386 p. – 1 vol. broché de 24,0 × 17,0 cm. – 37,00 €. – isbn 978-2-8073-2178-6
Variational principles in physics
No full textOptimization under constraints is an essential part of everyday life. Indeed, we routinely solve problems by striking a balance between contradictory interests, individual desires and material contingencies. This notion of equilibrium was dear to thinkers of the enlightenment, as illustrated by Montesquieu’s famous formulation: "In all magistracies, the greatness of the power must be compensated by the brevity of the duration." Astonishingly, natural laws are guided by a similar principle. Variational principles have proven to be surprisingly fertile. For example, Fermat used variational methods to demonstrate that light follows the fastest route from one point to another, an idea which came to be known as Fermat’s principle, a cornerstone of geometrical optics. Variational Principles in Physics explains variational principles and charts their use throughout modern physics. The heart of the book is devoted to the analytical mechanics of Lagrange and Hamilton, the basic tools of any physicist. Prof. Basdevant also offers simple but rich first impressions of Einstein’s General Relativity, Feynman’s Quantum Mechanics, and more revealing and amazing interconnections between various fields of physics. A graduate of the Ecole Normale Superieure, Jean-Louis Basdevant is Professor and former Chair of the Department of Physics at the Ecole Polytechnique, and Director of Research for the CNRS. Specializing in the theoretical physics of elementary particles, quantum field theory and astrophysics, Prof. Basdevant works in the Leprince-Ringuet Laboratory at the Ecole Polytechnique
Lectures on Quantum Mechanics
No full textBeautifully illustrated and engagingly written, Lectures on Quantum Mechanics presents theoretical physics with a breathtaking array of examples and anecdotes. Basdevant's style is clear and stimulating, in the manner of a brisk classroom lecture that students can follow with ease and enjoyment. Here is a sample of the book's style, from the opening of Chapter 1: "If one were to ask a passer-by to quote a great formula of physics, chances are that the answer would be 'E = mc2'. Nevertheless, the formula 'E=hV' which was written in the same year 1905 by the same Albert Einstein, and which started quantum theory, concerns their daily life considerably more. In fact, of the three watershed years for physics toward the beginning of the 20th century - 1905: the Special Relativity of Einstein, Lorentz and Poincaré; 1915: the General Relativity of Einstein, with its extraordinary reflections on gravitation, space and time; and 1925: the full development of Quantum Mechanics - it is surely the last which has the most profound implications for the development of science and technology. There is no way around it: all physics is quantum, from elementary particles, to stellar physics and the Big Bang, not to mention semiconductors and solar cells." A graduate of the Ecole Normale Superieure, Jean-Louis Basdevant is Professor and former Chair of the Department of Physics at the Ecole Polytechnique, and Director of Research for the CNRS. Specializing in the theoretical physics of elementary particles, quantum field theory and astrophysics, Prof. Basdevant works in the Leprince-Ringuet Laboratory at the Ecole Polytechnique
Lectures on quantum mechanics: with problems, exercises and their solutions
No full textThe new edition of this remarkable text offers the reader a conceptually strong introduction to quantum mechanics, but goes beyond this to present a fascinating tour of modern theoretical physics. Beautifully illustrated and engagingly written, it starts with a brief overview of diverse topics across physics including nanotechnology, statistical physics, materials science, astrophysics, and cosmology. The core of the book covers both established and emerging aspects of quantum mechanics. A concise introduction to traditional quantum mechanics covers the Schrödinger equation, Hilbert space, the algebra of observables, hydrogen atom, spin and Pauli principle. Modern features of the field are presented by exploring entangled states, Bell's inequality, quantum cryptography, quantum teleportation and quantum mechanics in the universe. This new edition has been enchanced through the addition of numerous problems with detailed solutions, an introduction to the mathematical tools needed and expanded discussion of the state-of-the-art in applications of quantum mechanics. Reviews of the 1st Edition: “This stimulating book on quantum mechanics documents many of the lively introduetory lectures given by Jean-Louis Basdevant during the past 25 years...written in a very engaging manner with regular mention of interesting applications and events and personages in the history of quantum mechanics…An insightful discussion is given of the methodology involved in the construction of quantum theory…” (Howard E. Brandt, Mathematical Reviews) "The strength of the book lies in Bedevant’s obvious talent as a lecturer. He is engaging and interesting and uses a wide variety of examples and sources. … These are interesting lectures and would be useful to anyone interested in an advanced introduction, or a review, of the topic." (E. Kincanon, CHOICE) "This textbook presents theoretical physics with a breathtaking array of examples and anecdotes. The author’s style is clear and stimulating, in the manner of a brisk classroom lecture that students can follow with ease and enjoyment. The book is written in physical language, without the excessive mathematics." (Vladimir Dzhunushaliev, Zentralblatt MATH)
Gaudemet (Jean) Basdevant (Brigitte) Les Canons des Conciles mérovingiens (VI -VII siècles)
No full textPoulat Emile. Gaudemet (Jean) Basdevant (Brigitte) Les Canons des Conciles mérovingiens (VI -VII siècles). In: Archives de sciences sociales des religions, n°74, 1991. pp. 247-248
Basdevant (J.), Berger (G.), Bourbon-Busset (J. de)... - Les affaires étrangères.
No full textMeynaud Jean. Basdevant (J.), Berger (G.), Bourbon-Busset (J. de)... - Les affaires étrangères.. In: Revue économique, volume 12, n°4, 1961. pp. 660-661
État de droit, droits de l’homme et religions – une mise en perspective France/Iran
No full textActes du colloque de décembre 2008 organisé par Brigitte Basdevant et Nathalie Goedert, en collaboration avec l'Institut d'études de droit public de la Faculté Jean Monnet, SceauxInternational audienc
Famous optician: Augustin Fresnel and the wave theory of light
No full textAugustin Fresnel was born in 1788, in the Normandy village of Broglie where his father was employed as an architect by the duc de Broglie. The author of the wave theory of light was thus born on lands that would later belong to Louis de Broglie, the author of the wave theory of matter, whose birth came a century later. Fresnel’s work was accomplished in less than a decade
The quantum mechanics solver : how to apply quantum theory to modern physics / Jean-Louis Basdevant, Jean Dalibard.
No full textIncludes index.xiv, 292 p.
Le Mémoire de Fresnel sur la diffraction de la lumière
No full textCe texte de 1815 de Fresnel est la naissance de la théorie ondulatoire de la lumière. En faisant des observations et des mesures très précises sur la diffraction de la lumière, le jeune savant de 27 ans s’attaque à l’illustre Newton et à sa théorie corpusculaire, en indiquant : « Il me semble que la théorie des vibrations se plie mieux que celle de Newton à tous les phénomènes ». Grâce à cette théorie, il explique les franges de lumière et d’ombre, ce qu’Arago appellera « interférences ». Fresnel calcule les fameuses « différences de marche » à deux rayons lumineux, et reconnaîtra dans son mémoire suivant (1818) que le calcul devait être fait de manière continue (et non à deux rayons seulement), ce qui amène aux fameuses intégrales de Fresnel. Repartant des travaux du jésuite Grimaldi en 1665 et en passant par Huygens et Young, l’analyse par J.L. Basdevant nous fait vivre jusqu’à Fresnel l’aventure de la diffraction des rayons lumineux
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